The Martin Tools 160FG is a heavy duty bumping hammer, a body hammer used to bump out and straighten damaged sheet metal. Compared with lighter body hammers it has a heavier head for straightening thicker metal. It has two faces, a 1-1/4" round and a 1-3/16" square, on a head about 4" long, and it weighs 1.1 lb with a cushion grip fiberglass handle.
Auto body and truck body technicians use it on heavy gauge truck fenders and panels, and for straightening reinforcements, braces, and similar parts. One distributor notes the hammer is one of the basic hand tools around which the body and fender repair trade was developed. A retailer's customer Q&A states the edges of the square face are rounded off rather than sharply square. Heavier bumping typically comes before the lighter dinging and finishing hammers used to refine the surface.
Common configuration: drop-forged high carbon (alloy carbon) steel head that is heat treated, quenched, and tempered, with a burnt lacquer finish, 1-1/4" round and 1-3/16" square faces, 4" head length, 1.1 lb weight, and a cushion grip fiberglass handle. The wood-handle counterpart is the 160G. The hammer is made in the USA by Martin Sprocket & Gear (Martin Tool & Forge), carries UPC 697950375304, and is also listed as MT160FG and 678-160FG. One retailer shows the item as discontinued while others list it as available, so confirm stock with your supplier.
Quick-Reference Spec Glossary
- Faces
- 1-1/4" round and 1-3/16" square
- Head length
- 4"
- Weight
- 1.1 lb
- Handle
- Cushion grip fiberglass (wood-handle version is 160G)
- Head material / process
- Drop-forged high carbon (alloy carbon) steel, heat treated, quenched and tempered
- Finish
- Burnt lacquer
- Application
- Heavy gauge truck fenders and panels; straightening reinforcements and braces
- Origin / part numbers
- Made in USA; 160FG, MT160FG, 678-160FG; UPC 697950375304